The following is a checklist and explanation from A to Z of the tasks necessary to incorporate a business in Arizona. Should you decide to create a limited liability company.(LLC) or corporation, you must then file with the. Forming an LLC in Arizona starts with Articles of Organization, which are filed with the Arizona Corporate Commission. Complete the brief interest form below. If you want to file a corporation or LLC, you need to file with the Arizona Corporation Commission. Get professional assistance with your limited liability company operating agreement documents with AZ Statewide Paralegal in Tucson and Phoenix, AZ.